Seiko Cal. 3891 - 644

The 3891-644 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3891 caliber with 36j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-6cea0fe8ca87]

Also known as: Pogue

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1998

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